<?php

if ($a > $b)
    echo "a is bigger than b";
elseif ($a == $b)
    echo "a is equal to b";

try {
    something();
} catch (Exception $e) {
    return false;
}

if ($a > $b)
    echo "a is bigger than b";
elseif ($a == $b)
    echo "a is equal to b";

if (true) {
    echo "true";
} elseif (true) {
    echo "elseif";
} else {
    echo "false";
}

do {
    echo "do";
} while (true);

if ($a > $b)
    echo "a is bigger than b";
elseif ($a == $b)
    echo "a is equal to b";
?>